diff --git a/schemas/bindings.json b/schemas/bindings.json
index 7b0c3c8..313c457 100644
--- a/schemas/bindings.json
+++ b/schemas/bindings.json
@@ -34,7 +34,9 @@
           "type": "string"
         },
         "delimiter": {
-          "type": "string"
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 1
         },
         "eval": {
           "type": "boolean"
diff --git a/schemas/config.json b/schemas/config.json
index a9f47b5..929b860 100644
--- a/schemas/config.json
+++ b/schemas/config.json
@@ -2,7 +2,9 @@
   "type": "object",
   "properties": {
     "outputDelimiter": {
-      "type": "string"
+      "type": "string",
+      "minLength": 1,
+      "maxLength": 1
     },
     "timeout": {
       "type": "integer",
diff --git a/src/run.ts b/src/run.ts
index a2c0505..6dfb349 100644
--- a/src/run.ts
+++ b/src/run.ts
@@ -84,22 +84,22 @@ For example, this simulates pressing "g", "p", and "f".`,
 
       tui.close()
 
-      const outputs = [buffer]
+      const delimiter = typeof definedDelimiter === 'string' ? definedDelimiter : ctx.outputDelimiter
+
+      const outputs = [delimiter, buffer]
       for (const [k, v] of Object.entries(rest)) {
         switch (typeof v) {
           case 'string':
             outputs.push(`${k}:${v}`)
             break
           case 'boolean':
-            outputs.push(`${k}:${JSON.stringify(v)}`)
+            outputs.push(`${k}:${v ? 'true' : 'false'}`)
             break
           default:
             break
         }
       }
 
-      const delimiter = typeof definedDelimiter === 'string' ? definedDelimiter : ctx.outputDelimiter
-
       console.log(outputs.join(delimiter))
     } catch (e: unknown) {
       if (e instanceof AbortError) {
diff --git a/src/widget.eta b/src/widget.eta
index b82b6f8..4f9097d 100644
--- a/src/widget.eta
+++ b/src/widget.eta
@@ -28,7 +28,10 @@ _wk_widget() {
       ;;
   esac
 
-  reply=("${(@ps:\t:)res}")
+  # `p` flag does NOT work with the ${var} format; must use $var instead.
+  # See: https://zsh.sourceforge.io/Doc/Release/Expansion.html#Parameter-Expansion
+  local delimiter=$res[1]
+  reply=("${(@ps:$delimiter:)${res:2}}")
 
   if [[ "${reply[(rb:2:)eval:*]}" == 'eval:true' ]]; then
     BUFFER="${LBUFFER}${(e)reply[1]}${RBUFFER}"